X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/df2bb45e41303b5132feb6b264caaa01c31b8bb5..a3d92499a8c10b231db452e86a0a71900910fa4f:/projects/sgconf/main.cpp

diff --git a/projects/sgconf/main.cpp b/projects/sgconf/main.cpp
index 8644e690..a0ef89a1 100644
--- a/projects/sgconf/main.cpp
+++ b/projects/sgconf/main.cpp
@@ -65,6 +65,65 @@ struct ARRAY_TYPE<T[N]>
 typedef T type;
 };
 
+template <typename T>
+struct nullary_function
+{
+typedef T result_type;
+};
+
+template <typename F>
+class binder0 : public nullary_function<typename F::result_type>
+{
+    public:
+        binder0(const F & func, const typename F::argument_type & arg)
+            : m_func(func), m_arg(arg) {}
+        typename F::result_type operator()() const { return m_func(m_arg); }
+    private:
+        F m_func;
+        typename F::argument_type m_arg;
+};
+
+template <typename F>
+inline
+binder0<F> bind0(const F & func, const typename F::argument_type & arg)
+{
+return binder0<F>(func, arg);
+}
+
+template <typename C, typename A, typename R>
+class METHOD1_ADAPTER : public std::unary_function<A, R>
+{
+    public:
+        METHOD1_ADAPTER(R (C::* func)(A), C & obj) : m_func(func), m_obj(obj) {}
+        R operator()(A arg) { return (m_obj.*m_func)(arg); }
+    private:
+        R (C::* m_func)(A);
+        C & m_obj;
+};
+
+template <typename C, typename A, typename R>
+class CONST_METHOD1_ADAPTER : public std::unary_function<A, R>
+{
+    public:
+        CONST_METHOD1_ADAPTER(R (C::* func)(A) const, C & obj) : m_func(func), m_obj(obj) {}
+        R operator()(A arg) const { return (m_obj.*m_func)(arg); }
+    private:
+        R (C::* m_func)(A) const;
+        C & m_obj;
+};
+
+template <typename C, typename A, typename R>
+METHOD1_ADAPTER<C, A, R> Method1Adapt(R (C::* func)(A), C & obj)
+{
+return METHOD1_ADAPTER<C, A, R>(func, obj);
+}
+
+template <typename C, typename A, typename R>
+CONST_METHOD1_ADAPTER<C, A, R> Method1Adapt(R (C::* func)(A) const, C & obj)
+{
+return CONST_METHOD1_ADAPTER<C, A, R>(func, obj);
+}
+
 template <typename T>
 bool SetArrayItem(T & array, const char * index, const typename ARRAY_TYPE<T>::type & value)
 {
@@ -87,12 +146,34 @@ void UsageCorporations(bool full);
 
 void Version();
 
+void ReadUserConfigFile(SGCONF::OPTION_BLOCK & block)
+{
+std::vector<std::string> paths;
+const char * configHome = getenv("XDG_CONFIG_HOME");
+if (configHome == NULL)
+    {
+    const char * home = getenv("HOME");
+    if (home == NULL)
+        return;
+    paths.push_back(std::string(home) + "/.config/sgconf/sgconf.conf");
+    paths.push_back(std::string(home) + "/.sgconf/sgconf.conf");
+    }
+else
+    paths.push_back(std::string(configHome) + "/sgconf/sgconf.conf");
+for (std::vector<std::string>::const_iterator it = paths.begin(); it != paths.end(); ++it)
+    if (access(it->c_str(), R_OK) == 0)
+        {
+        block.ParseFile(*it);
+        return;
+        }
+}
+
 } // namespace anonymous
 
 namespace SGCONF
 {
 
-class CONFIG_ACTION: public ACTION
+class CONFIG_ACTION : public ACTION
 {
     public:
         CONFIG_ACTION(CONFIG & config,
@@ -101,6 +182,8 @@ class CONFIG_ACTION: public ACTION
               m_description(paramDescription)
         {}
 
+        virtual ACTION * Clone() const { return new CONFIG_ACTION(*this); }
+
         virtual std::string ParamDescription() const { return m_description; }
         virtual std::string DefaultDescription() const { return ""; }
         virtual OPTION_BLOCK & Suboptions() { return m_suboptions; }
@@ -117,6 +200,10 @@ class CONFIG_ACTION: public ACTION
 
 PARSER_STATE CONFIG_ACTION::Parse(int argc, char ** argv)
 {
+if (argc == 0 ||
+    argv == NULL ||
+    *argv == NULL)
+    throw ERROR("Missing argument.");
 char * pos = strchr(*argv, '@');
 if (pos != NULL)
     {
@@ -1138,23 +1225,70 @@ return ProcessSetUser(req.server.data(), req.port.data(), req.admLogin.data(), r
 //-----------------------------------------------------------------------------
 int main(int argc, char **argv)
 {
-UsageAll();
-exit(0);
-
 SGCONF::CONFIG config;
 
-SGCONF::OPTION_BLOCK generalOptions;
-generalOptions.Add("c", "config", SGCONF::MakeParamAction(config.configFile, std::string("~/.config/stg/sgconf.conf"), "<config file>"), "override default config file");
-generalOptions.Add("h", "help", SGCONF::MakeFunc0Action(Usage), "show this help and exit");
-generalOptions.Add("help-all", SGCONF::MakeFunc0Action(UsageAll), "show full help and exit");
-generalOptions.Add("v", "version", SGCONF::MakeFunc0Action(Version), "show version information and exit");
-
-SGCONF::OPTION_BLOCK connOptions;
-connOptions.Add("s", "server", SGCONF::MakeParamAction(config.server, std::string("localhost"), "<address>"), "host to connect");
-connOptions.Add("p", "port", SGCONF::MakeParamAction(config.port, uint16_t(5555), "<port>"), "port to connect");
-connOptions.Add("u", "username", SGCONF::MakeParamAction(config.userName, std::string("admin"), "<username>"), "administrative login");
-connOptions.Add("w", "userpass", SGCONF::MakeParamAction(config.userPass, "<password>"), "password for the administrative login");
-connOptions.Add("a", "address", SGCONF::MakeParamAction(config, "<connection string>"), "connection params as a single string in format: <login>:<password>@<host>:<port>");
+SGCONF::OPTION_BLOCKS blocks;
+blocks.Add("General options")
+      .Add("c", "config", SGCONF::MakeParamAction(config.configFile, std::string("~/.config/stg/sgconf.conf"), "<config file>"), "override default config file")
+      .Add("h", "help", SGCONF::MakeFunc0Action(bind0(Method1Adapt(&SGCONF::OPTION_BLOCKS::Help, blocks), 0)), "\t\tshow this help and exit")
+      .Add("help-all", SGCONF::MakeFunc0Action(UsageAll), "\t\tshow full help and exit")
+      .Add("v", "version", SGCONF::MakeFunc0Action(Version), "\t\tshow version information and exit");
+SGCONF::OPTION_BLOCK & block = blocks.Add("Connection options")
+      .Add("s", "server", SGCONF::MakeParamAction(config.server, std::string("localhost"), "<address>"), "\t\thost to connect")
+      .Add("p", "port", SGCONF::MakeParamAction(config.port, uint16_t(5555), "<port>"), "\t\tport to connect")
+      .Add("u", "username", SGCONF::MakeParamAction(config.userName, std::string("admin"), "<username>"), "\tadministrative login")
+      .Add("w", "userpass", SGCONF::MakeParamAction(config.userPass, "<password>"), "\tpassword for the administrative login")
+      .Add("a", "address", SGCONF::MakeParamAction(config, "<connection string>"), "connection params as a single string in format: <login>:<password>@<host>:<port>");
+
+
+SGCONF::PARSER_STATE state(false, argc, argv);
+
+try
+{
+state = blocks.Parse(--argc, ++argv); // Skipping self name
+}
+catch (const SGCONF::OPTION::ERROR& ex)
+{
+std::cerr << ex.what() << "\n";
+return -1;
+}
+
+if (state.stop)
+    return 0;
+
+if (state.argc > 0)
+    {
+    std::cerr << "Unknown option: '" << *state.argv << "'\n";
+    return -1;
+    }
+
+try
+{
+SGCONF::CONFIG configOverride(config);
+
+if (config.configFile.empty())
+    {
+    const char * mainConfigFile = "/etc/sgconf/sgconf.conf";
+    if (access(mainConfigFile, R_OK) == 0)
+        block.ParseFile(mainConfigFile);
+    ReadUserConfigFile(block);
+    }
+else
+    {
+    block.ParseFile(config.configFile.data());
+    }
+
+config = configOverride;
+}
+catch (const std::exception& ex)
+{
+std::cerr << ex.what() << "\n";
+return -1;
+}
+
+std::cerr << "Config: " << config.Serialize() << std::endl;
+
+return 0;
 
 if (argc < 2)
     {